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(No Model.) I 4 Sheets-Sheet 1.

J. E'. MOKAY & A. G. DELANOY.

GARBAGE GREMATORY Patented Mar. 27, 1894.

' I {INVENTORY WITNESSES 4 Sheets-Sheet 2. J. E. McKAY & A. G. DELANOY.

(No Model.)

GARBAGE GRBMATORY.

No. 517,288. Patented Mar. 27, 1894.

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ATTORNEY.

THE NATIONAL umorammma OQMPANY.

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J. E. McKAY & A; G. DBLANOY. GARBAGE GREMATORY.

Patented Mar. 27, 1894.

(No Model.)

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(No Model.) I 4 Sheets-Sheef 4.

J. E-MMGKAY 81,- A. G; DELANOY.

GARBAGE GREMATORY. 7

N0. 517,288. I Patented Mar. 27, 1-894.

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WITNESSES: INVENTUHS gwmg w g gw B Y W I 52w. ATTORNEY.

Usrrrnra JOHN E. MOKAY AND ALFRED G. DELANOY, OF NEW YORK, N. Y.

GARBAG E-CREMATO RY.

SPECIFICATION forming part Of Letters Patent NO. 517,288, dated March 27, 1894.

Auplication filed January 13, 1893- Serial No. 458,234- (No model.)

To all whom/ it may concern.-

Be it known that we, JOHN E. MOKAY and ALFRED G. DELANOY, citizens of the United States, and residents of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Garbage-Crematories, of which the following is a specification.

The invention relates to improvements in garbage crematories, for the use of cities and towns; and it consists in certain constructions of the combustion chamber or retort in which the garbage or refuse is burned, and the means for preventing the garbage or refuse from clogging in said chamber, all as hereinafter more fully described and claimed.

The invention further consists in means substantially as hereinafter described and claimed for wholly or partly drying the garbage or refuse prior to its descent into the combustion chamber, and also in a novel relation of the combustion chamber with the boiler by which the steam is generated for setting in motion the belts and gearing connected with the conveying belts, fan and other parts of the apparatus, as hereinafter particularly described and claimed.

Preferably preparatory to the burning of the material in the crematory constituting the present invention the garbage or refuse to be burned is first placed in a receptacle having a sieve-bottom, and the sand and like substances sifted or shaken therefrom, after which the receptacle is moved over an endless conveying belt and the material dumped thereon, the said material being thence conveyed to a platform Where it is sprayed with petroleum or other inflammable substance and then moved into the combustion chamber or retort where it is consumed. The garbage or refuse is prevented from clogging or becoming dense in the combustion chamber, so that the intense heat secured therein may rapidly and thoroughly consume the same. During the burning of the garbage, or refuse, air is fed to the combustion chamber or retort in proper quantities to combine with the gases created therein and form a resultant gas which will ignite and add to the intensity of the heat in the retort, thus producing the maximum degree of heat and perfection of combustion, with economy in the use of fuel and the prevention of the escape of disagreeable odors from the retort.

Referring to the accompanying drawings: Figure 1 is a vertical longitudinal section on the dotted line 1-1 of Fig. 5, through the furnace and the adjoining portions of a crematory constructed in accordance with and embodying the invention. Fig. 2 is a detached side elevation of a part of the upper end of the retort or combustion chamber of the furnace and illustrating particularly the lever mechanism for dumping the drying grate upon which the material may be permitted to dry prior to being dumped into the main body of the retort. Fig. 3 is a vertical section of the furnace on an enlarged scale, the section being on the dotted line 33 of Fig. 5 and looking to the left in the direction of the arrow. Fig. 4 is a like view of same on the dotted line 44: of Fig. 5, and looking to the right in the direction of the arrow. Fig. 5 is a horizontal section on an enlarged scale through the lower portion of the furnace,the section being on the dotted line 55 of Fig. 1.

In the drawings A designates the furnace having the grate, B, and the vertical retort or combustion chamber 0, which is provided at its upper portion, as illustrated in Fig. 1, with the inlet D for the garbage or other refuse to be burned.

Within the vertical retort or combustion chamber 0 are provided the tubular grate bars E, the radial tubular revoluble frame F, located directly above said bars E, and the series of connected tubular coils G, arranged above the said frame F. The tubular grate bars E are arranged with their portions crossing each other, as illustrated in Figs. 1 and 4, and form a concave grate adapted to support any of the refuse which may descend upon it. The grate bars E are hollow and provided with an inlet and outlet in order that water may be circulated through the same. The tubular frame F is provided with the radial tubular arms I and connecting horizontal tubes J, as illustrated more clearly in Fig.4, and is supported upon the pipes K, K, through which the water may pass to and from said frame while circulating through the said tubular arms I and tubes J. By arranging the pipes K, K, so as to be capable of rotating, as shown in Fig. 3, it is evident that the frame F may be caused to rotate while the furnace is in operation and thus prevent any clogging of the refuse upon the grate E or in the lower end of the vertical combustion chamber 0. The tubes G are of serpentine arrangement, being in horizontal coils extending at right angles to each other and connected together, as illustrated, and having an inlet and an outlet for water, in order that the water may enter the coil at one end and escape at the other end thereof, being in the meantime caused to circulatethrough all of the sections of the pipes or tubes G. The serpentine coils of pipe G obstruct the downward passage of the refuse to the frame F and grate E and their purpose in this operation is to lighten, distribute and partially suspend the mass and permit its rapid and complete consumption.

For the better construction and arrangement of the furnace, the frame F and connected serpentine coils of pipe G are readily detachable from the vertical combustion chamber 0 and to remove the said frame F and coils G it is simply necessary to withdraw the cover L from the furnace so as to open the passage way and then unscrew the water inlet and outlet pipes leading to and from the said coils G and frame F, whereupon the said frame and coils may be elevated through the upper end of the combustion chamber C, preparatory to their being rearranged, repaired or renewed.

The provision for the ready removal of the frame F and coils G is a matter of importance in furnaces of the class to which the invention pertains, since owing to the intense heat employed for the rapid consumption of the refuse, the character of the material conveyed to the furnace and other circumstances, it may be found necessary from time to time to inspect or remove the frame F and serpentine coils of pipe G.

\Vithin the upper portion of the combustion chamber 0 and about on a line with the inlet D thereto, is provided the solid grate composed of hinged sections M, M, adapted to receive and support the refuse prior to its eutrance into the main body of the combustion chamber. The sections M, M, are hinged and their inner ends are adapted to be tilted downward from each other in order that whatever material may have been thereon may be dumped into the central portion of the combustion chamber 0. The sections M, M, are provided at the outer side of the furnace, as illustrated in Figs. 2, 8 and 4. with the weighted levers N, N, mounted upon the spindles supporting said sections M, M, and having at their upper ends the pins 0 confined in the elongated slots of the connecting bar P, which at its center is connected with the hand rod Q, the purpose of the levers N, bar P, and rod Q is to effect the tilting of the solid grate sections M, M, and the return of the said sections to their horizontal position after the material is dumped upon the serpentine coils G. When it is desired to tilt the solid grate sections M, M, the attendant will pull downward on the rod Q, this having the effect through the bar P, and levers N, N, of causing the said sections M, M, to turn downward on their spindles toward the opposite walls of the combustion chamber 0. Upon the pressure being released from the rod Q, the weights at the lower ends of the levers N, N, will operate to restore the bar P and grate sections M, M, to their former horizontal position. It may not be necessary at all times to employ the solid grate sections M, M,but in the event of its being desired to burn very wet material it will be found of great convenience to employ the said grate sections for the purpose of re ceiving said material and supporting the same a sufiieient length of time for the material to have become partially or wholly dried pre vious to its descent into the combustion chamher 0. It is proposed to employ the grate sections M, M as a drying frame to prepare certain classes of refuse, such as night soil, for rapid consumption within the combustion chamber 0 and substantially to effect its consumption during its descent from the grate sections M, M, to the grate bars E, the object being to so rapidly burn the said material as to prevent its falling in any quantity upon or through the grate bars E.

Upon a level with the inlet D, leading to the combustion chamber C, is provided the platform R, as shown in Fig. l and arranged over this platform to move the garbage or other refuse from the same into the retort, is the endless scraper belt S, of well known constrnctiou. Above the outer end of the endless scraper belt S is provided the spray T, connected with a reservoir or tank V, containing petroleum or other inflammable material, the object being, when necessary, to spray the garbage or other refuse with the inflammable material prior to its entrance to the furnace for the purpose of facilitating the rapid consumption of the same.

Adjacent to the furnace A is arranged the boiler 10 of familiar construction, whose oiiice is to generate sufficient steam for thepurpose of driving the belts or other connections, not shown, which will set in motion the tubular frame F (Fig. 3), shaft m conveying belt d, scraper belt S, fan A (Fig. 5) and pump B (Fig. 3), the purpose of the pump being to circulate water through the tubes or pipes in the combustion chamber 0. The boiler w is inclosed in a casing or having a flue 1 and is connected with the combustion chamber 0 by a pipe or fine 0 provided with a damper D. The fine g has a pipe or fine E leading to the upper end of the combustion chamber 0, and this pipe or flue is supplied with a damper F and connected with the pipe C by means of the vertical pipe G, which is also provided with a damper, lettered H.

In the practical use of the crematory a fire is started in the fire box of the boiler w and also in the furnace A on the grate B, but after the operation is sufficiently under way,

the fire in the fire box of the boiler/w maybe V thence to the boiler w.

discontinued and the heat from the combustion chamber 0 utilized to keep'up the steam in the said boiler. By opening the damper D the heat from the furnace A may pass directly to the boiler w, or when preferred by closing the damper D, opening the damper H and closing the damper F, the heat from the upper portion of the chamber 0 may be directed downward through the pipe G and The fan A and its connecting pipe 1 supply air through the pipe J beneath the grate B of the furnace A, and, through the pipe K, to the combustion chamber 0. The air from the pipe J creates the draft for the furnace and the air from the pipe K combines with the gases in the chamber O to promote the combustion of the same and the consequent production of an intense heat in said chamber, with economy in the use of fuel and the prevention of foul odors escaping from the retort. In order that only the necessary quantity of air shall enter the combustion chamber 0, there is provided a valve L (Fig. 1) by which the passage into the pipe K may be regulated at will. As shown in Figs. 1 and 5 the main pipe I leading from the fan A extends through the base of the furnace and thus the air passing to the combustion chamber 0 is before reaching said chamber heated and thereby prepared to instantly combine with the gases and not retard the combustion or lower the heat in said chamber.

The operation of the crematory has been indicated in the foregoing description, and it will be understood that the tires are started beneath the boiler wand on the grate B and are allowed to continue until after the belts d, S, frame F, fan A and other working parts of theapparatusareinmotion,whereuponthefire beneath the boiler to may be discontinued and the heat from the combustion chamberutilized to keep up the steam in the boiler. The garbage and refuse are placed in a suitable receptacle which will then be reciprocated or shaken to sift out sand and other non-combustible elements, after which the receptacle is moved over an endless belt 01 and the garbage dumped onto said belt, by which it is conveyed to the platform R where it is sprayed with the petroleum or other inflammable substance and thence moved by the scraper belt S into the mouth D of the combustion chamber 0, in which it is rapidly consumed. During the burning of the garbage the pipes G keep the mass porous or sufficiently suspended to eX- pose the same to the full action of the heat, while the revolving frame F retains in a state of agitation such of the garbage as may have passed below the coils of pipe G; and in the meantime air is fed to the combustion chamher in order that the gases therein may be In burning some classes of refuse it maybe found desirable to dry the same before feeding it downward into the combustion chamber G, and hence the solid grate-sections M, M, have been provided, as explained above.

What we claim as our invention, and desire to secure by Letters Patent, is

1. The furnace having the grate bars and the retort or combustion chamber at the end thereof and provided with an inlet for refuse at its upper end, combined with the grate in the lower part of said chamber, and the revoluble frame having inlet and outlet connections for water .and consisting of the radial tubular arms I and connecting horizontal tubes J,substantially as and for the purposes described.

2. The furnace having the grate bars, and the retort or combustion chamber at the end thereof and provided with an inlet for refuse at its upper end, combined with the connected coils of pipe G wholly within and removable from said chamber, the revoluble tubular frame F below said coils, and the grate below said frame and adjacent thereto,substantially I as and for the purposes described.

3. The furnace having the grate bars, and the retort or combustion chamber at the end thereof and having grate-bars at its lower end and an inlet for refuse at its upper end, combined with a support formed with two pivoted sections and located inthe upper end of said chamber for holding the refuse while the latter'is being dried, means for holding the members of said support normally in a raised or closed position, a bar connecting said holding means, and means for operatihg said bar so as to simultaneously lower or open the members of said support to dump the refuse, substantially as and for the purposes described.

4. The furnace having grate bars, and the retort or combustion chamber at the end thereof and having grate bars at the lower end and an inlet for refuse at its upper end, combined with the support for refuse formed of two pivoted sections located at the upper end of said chamber, the weighted levers connected to the sections of said support, the bar connecting the inner ends of said levers, and the rod connected to said bar by which the parts of the support are simultaneously moved to dump the refuse, substantially as and for the purposes described.

5. The furnace having the grate bars, fire box and ash pit, and the retort or combustion chamber at the end of and communicating with said furnace and having the grate at its lower end and an inlet for refuse at its upper end, combined with the adjacent boiler, the casing inclosing the same and provided with the outlet flue, the pipe passing from the lower part of said retort to said boiler and the connection between said flue and the upper part of said retort, the whole being arranged and operating substantially as and for the purposes set forth.

IIO

connections and connecting the same together, substantially as and for the purposes described.

Signed at New York, in the county of New York and State of New York, this 10th day of January, A. D. 1893.

JOHN E. MCKAY. ALFRED G. DELANOY.

Witnesses:

CHAS. G. GILL, ED. D. MILLER. 

